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Fixed incorrect USB device state set when a suspended LUFA device is woken while...
[pub/USBasp.git] / Demos / Host / LowLevel / MIDIHost / MIDIHost.c
diff --git a/Demos/Host/LowLevel/MIDIHost/MIDIHost.c b/Demos/Host/LowLevel/MIDIHost/MIDIHost.c
index f518550..620cbc9 100644 (file)
--- a/Demos/Host/LowLevel/MIDIHost/MIDIHost.c
+++ b/Demos/Host/LowLevel/MIDIHost/MIDIHost.c
@@ -1,24 +1,24 @@
 /*
              LUFA Library
 /*
              LUFA Library
-     Copyright (C) Dean Camera, 2010.
-              
+     Copyright (C) Dean Camera, 2013.
+
   dean [at] fourwalledcubicle [dot] com
   dean [at] fourwalledcubicle [dot] com
-      www.fourwalledcubicle.com
+           www.lufa-lib.org
 */
 
 /*
 */
 
 /*
-  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2013  Dean Camera (dean [at] fourwalledcubicle [dot] com)
 
 
-  Permission to use, copy, modify, distribute, and sell this 
+  Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted
   software and its documentation for any purpose is hereby granted
-  without fee, provided that the above copyright notice appear in 
+  without fee, provided that the above copyright notice appear in
   all copies and that both that the copyright notice and this
   all copies and that both that the copyright notice and this
-  permission notice and warranty disclaimer appear in supporting 
-  documentation, and that the name of the author not be used in 
-  advertising or publicity pertaining to distribution of the 
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
   software without specific, written prior permission.
 
   software without specific, written prior permission.
 
-  The author disclaim all warranties with regard to this
+  The author disclaims all warranties with regard to this
   software, including all implied warranties of merchantability
   and fitness.  In no event shall the author be liable for any
   special, indirect or consequential damages or any damages
   software, including all implied warranties of merchantability
   and fitness.  In no event shall the author be liable for any
   special, indirect or consequential damages or any damages
@@ -33,7 +33,7 @@
  *  Main source file for the MIDIHost demo. This file contains the main tasks of
  *  the demo and is responsible for the initial application hardware configuration.
  */
  *  Main source file for the MIDIHost demo. This file contains the main tasks of
  *  the demo and is responsible for the initial application hardware configuration.
  */
- 
+
 #include "MIDIHost.h"
 
 /** Main program entry point. This routine configures the hardware required by the application, then
 #include "MIDIHost.h"
 
 /** Main program entry point. This routine configures the hardware required by the application, then
@@ -46,11 +46,12 @@ int main(void)
        puts_P(PSTR(ESC_FG_CYAN "MIDI Host Demo running.\r\n" ESC_FG_WHITE));
 
        LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
        puts_P(PSTR(ESC_FG_CYAN "MIDI Host Demo running.\r\n" ESC_FG_WHITE));
 
        LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-       sei();
+       GlobalInterruptEnable();
 
        for (;;)
        {
 
        for (;;)
        {
-               MIDI_Host_Task();
+               MIDIHost_Task();
+
                USB_USBTask();
        }
 }
                USB_USBTask();
        }
 }
@@ -58,19 +59,24 @@ int main(void)
 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 void SetupHardware(void)
 {
 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 void SetupHardware(void)
 {
+#if (ARCH == ARCH_AVR8)
        /* Disable watchdog if enabled by bootloader/fuses */
        MCUSR &= ~(1 << WDRF);
        wdt_disable();
 
        /* Disable clock division */
        clock_prescale_set(clock_div_1);
        /* Disable watchdog if enabled by bootloader/fuses */
        MCUSR &= ~(1 << WDRF);
        wdt_disable();
 
        /* Disable clock division */
        clock_prescale_set(clock_div_1);
+#endif
 
        /* Hardware Initialization */
 
        /* Hardware Initialization */
-       SerialStream_Init(9600, false);
+       Serial_Init(9600, false);
        LEDs_Init();
        Buttons_Init();
        Joystick_Init();
        USB_Init();
        LEDs_Init();
        Buttons_Init();
        Joystick_Init();
        USB_Init();
+
+       /* Create a stdio stream for the serial port for stdin and stdout */
+       Serial_CreateStream(NULL);
 }
 
 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 }
 
 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
@@ -96,13 +102,42 @@ void EVENT_USB_Host_DeviceUnattached(void)
  */
 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 {
  */
 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 {
+       puts_P(PSTR("Getting Config Data.\r\n"));
+
+       uint8_t ErrorCode;
+
+       /* Get and process the configuration descriptor data */
+       if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
+       {
+               if (ErrorCode == ControlError)
+                 puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
+               else
+                 puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
+
+               printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
+
+               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+               return;
+       }
+
+       /* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
+       if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
+       {
+               printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
+                                        " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
+
+               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+               return;
+       }
+
+       puts_P(PSTR("MIDI Device Enumerated.\r\n"));
        LEDs_SetAllLEDs(LEDMASK_USB_READY);
 }
 
 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 {
        LEDs_SetAllLEDs(LEDMASK_USB_READY);
 }
 
 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 {
-       USB_ShutDown();
+       USB_Disable();
 
        printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
                                 " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 
        printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
                                 " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
@@ -121,150 +156,111 @@ void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
                                 " -- Error Code %d\r\n"
                                 " -- Sub Error Code %d\r\n"
                                 " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
                                 " -- Error Code %d\r\n"
                                 " -- Sub Error Code %d\r\n"
                                 " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
-       
+
        LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 }
 
        LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 }
 
-/** Task to set the configuration of the attached device after it has been enumerated, and to read in
- *  note on/off messages from the attached MIDI device and print it to the serial port. When the board
- *  joystick or buttons are pressed, note on/off messages are sent to the attached device.
+/** Task to read in note on/off messages from the attached MIDI device and print it to the serial port.
+ *  When the board joystick or buttons are pressed, note on/off messages are sent to the attached device.
  */
  */
-void MIDI_Host_Task(void)
+void MIDIHost_Task(void)
 {
 {
-       uint8_t ErrorCode;
+       if (USB_HostState != HOST_STATE_Configured)
+         return;
 
 
-       switch (USB_HostState)
+       Pipe_SelectPipe(MIDI_DATA_IN_PIPE);
+       Pipe_Unfreeze();
+
+       if (Pipe_IsINReceived())
        {
        {
-               case HOST_STATE_Addressed:
-                       puts_P(PSTR("Getting Config Data.\r\n"));
-               
-                       /* Get and process the configuration descriptor data */
-                       if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
-                       {
-                               if (ErrorCode == ControlError)
-                                 puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
-                               else
-                                 puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
-
-                               printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
-                               
-                               /* Indicate error via status LEDs */
-                               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-
-                               /* Wait until USB device disconnected */
-                               USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                               break;
-                       }
-                       
-                       /* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
-                       if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
-                       {
-                               printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
-                                                        " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
-
-                               /* Indicate error via status LEDs */
-                               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-
-                               /* Wait until USB device disconnected */
-                               USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                               break;
-                       }
-
-                       puts_P(PSTR("MIDI Device Enumerated.\r\n"));
-
-                       USB_HostState = HOST_STATE_Configured;
-                       break;
-               case HOST_STATE_Configured:
-                       Pipe_SelectPipe(MIDI_DATAPIPE_IN);
-                       
-                       if (Pipe_IsINReceived())
-                       {
-                               USB_MIDI_EventPacket_t MIDIEvent;
-                               
-                               Pipe_Read_Stream_LE(&MIDIEvent, sizeof(MIDIEvent));
-                               
-                               bool NoteOnEvent  = ((MIDIEvent.Command & 0x0F) == (MIDI_COMMAND_NOTE_ON  >> 4));
-                               bool NoteOffEvent = ((MIDIEvent.Command & 0x0F) == (MIDI_COMMAND_NOTE_OFF >> 4));
-                               
-                               if (NoteOnEvent || NoteOffEvent)
-                               {
-                                       printf_P(PSTR("MIDI Note %s - Channel %d, Pitch %d, Velocity %d\r\n"), NoteOnEvent ? "On" : "Off",
-                                                                                                          ((MIDIEvent.Data1 & 0x0F) + 1),
-                                                                                                          MIDIEvent.Data2, MIDIEvent.Data3);
-                               }
-
-                               Pipe_ClearIN();
-                       }
-                       
-                       Pipe_SelectPipe(MIDI_DATAPIPE_OUT);
-                       
-                       static uint8_t PrevJoystickStatus;
-
-                       if (Pipe_IsOUTReady())
-                       {
-                               uint8_t MIDICommand = 0;
-                               uint8_t MIDIPitch;
-                       
-                               uint8_t JoystickStatus  = Joystick_GetStatus();
-                               uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);
-                               
-                               /* Get board button status - if pressed use channel 10 (percussion), otherwise use channel 1 */
-                               uint8_t Channel = ((Buttons_GetStatus() & BUTTONS_BUTTON1) ? MIDI_CHANNEL(10) : MIDI_CHANNEL(1));
-
-                               if (JoystickChanges & JOY_LEFT)
-                               {
-                                       MIDICommand = ((JoystickStatus & JOY_LEFT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
-                                       MIDIPitch   = 0x3C;
-                               }
+               MIDI_EventPacket_t MIDIEvent;
 
 
-                               if (JoystickChanges & JOY_UP)
-                               {
-                                       MIDICommand = ((JoystickStatus & JOY_UP)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
-                                       MIDIPitch   = 0x3D;
-                               }
+               Pipe_Read_Stream_LE(&MIDIEvent, sizeof(MIDIEvent), NULL);
 
 
-                               if (JoystickChanges & JOY_RIGHT)
-                               {
-                                       MIDICommand = ((JoystickStatus & JOY_RIGHT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
-                                       MIDIPitch   = 0x3E;
-                               }
-                               
-                               if (JoystickChanges & JOY_DOWN)
-                               {
-                                       MIDICommand = ((JoystickStatus & JOY_DOWN)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
-                                       MIDIPitch   = 0x3F;
-                               }
+               if (!(Pipe_BytesInPipe()))
+                 Pipe_ClearIN();
 
 
-                               if (JoystickChanges & JOY_PRESS)
-                               {
-                                       MIDICommand = ((JoystickStatus & JOY_PRESS)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
-                                       MIDIPitch   = 0x3B;
-                               }
+               bool NoteOnEvent  = (MIDIEvent.Event == MIDI_EVENT(0, MIDI_COMMAND_NOTE_ON));
+               bool NoteOffEvent = (MIDIEvent.Event == MIDI_EVENT(0, MIDI_COMMAND_NOTE_OFF));
+
+               if (NoteOnEvent || NoteOffEvent)
+               {
+                       printf_P(PSTR("MIDI Note %s - Channel %d, Pitch %d, Velocity %d\r\n"), NoteOnEvent ? "On" : "Off",
+                                                                                                                                                                  ((MIDIEvent.Data1 & 0x0F) + 1),
+                                                                                                                                                                  MIDIEvent.Data2, MIDIEvent.Data3);
+               }
+       }
 
 
-                               /* Check if a MIDI command is to be sent */
-                               if (MIDICommand)
+       Pipe_Freeze();
+
+       Pipe_SelectPipe(MIDI_DATA_OUT_PIPE);
+       Pipe_Unfreeze();
+
+       if (Pipe_IsOUTReady())
+       {
+               uint8_t MIDICommand = 0;
+               uint8_t MIDIPitch;
+
+               static uint8_t PrevJoystickStatus;
+               uint8_t JoystickStatus  = Joystick_GetStatus();
+               uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);
+
+               /* Get board button status - if pressed use channel 10 (percussion), otherwise use channel 1 */
+               uint8_t Channel = ((Buttons_GetStatus() & BUTTONS_BUTTON1) ? MIDI_CHANNEL(10) : MIDI_CHANNEL(1));
+
+               if (JoystickChanges & JOY_LEFT)
+               {
+                       MIDICommand = ((JoystickStatus & JOY_LEFT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+                       MIDIPitch   = 0x3C;
+               }
+
+               if (JoystickChanges & JOY_UP)
+               {
+                       MIDICommand = ((JoystickStatus & JOY_UP)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+                       MIDIPitch   = 0x3D;
+               }
+
+               if (JoystickChanges & JOY_RIGHT)
+               {
+                       MIDICommand = ((JoystickStatus & JOY_RIGHT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+                       MIDIPitch   = 0x3E;
+               }
+
+               if (JoystickChanges & JOY_DOWN)
+               {
+                       MIDICommand = ((JoystickStatus & JOY_DOWN)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+                       MIDIPitch   = 0x3F;
+               }
+
+               if (JoystickChanges & JOY_PRESS)
+               {
+                       MIDICommand = ((JoystickStatus & JOY_PRESS)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
+                       MIDIPitch   = 0x3B;
+               }
+
+               /* Check if a MIDI command is to be sent */
+               if (MIDICommand)
+               {
+                       MIDI_EventPacket_t MIDIEvent = (MIDI_EventPacket_t)
                                {
                                {
-                                       USB_MIDI_EventPacket_t MIDIEvent = (USB_MIDI_EventPacket_t)
-                                               {
-                                                       .CableNumber = 0,
-                                                       .Command     = (MIDICommand >> 4),
-                                                       
-                                                       .Data1       = MIDICommand | Channel,
-                                                       .Data2       = MIDIPitch,
-                                                       .Data3       = MIDI_STANDARD_VELOCITY,                  
-                                               };
-                                               
-                                       /* Write the MIDI event packet to the pipe */
-                                       Pipe_Write_Stream_LE(&MIDIEvent, sizeof(MIDIEvent));
-                               
-                                       /* Send the data in the pipe to the device */
-                                       Pipe_ClearOUT();
-                               }
-                               
-                               /* Save previous joystick value for next joystick change detection */
-                               PrevJoystickStatus = JoystickStatus;
-                       }
-
-                       break;
+                                       .Event       = MIDI_EVENT(0, MIDICommand),
+
+                                       .Data1       = MIDICommand | Channel,
+                                       .Data2       = MIDIPitch,
+                                       .Data3       = MIDI_STANDARD_VELOCITY,
+                               };
+
+                       /* Write the MIDI event packet to the pipe */
+                       Pipe_Write_Stream_LE(&MIDIEvent, sizeof(MIDIEvent), NULL);
+
+                       /* Send the data in the pipe to the device */
+                       Pipe_ClearOUT();
+               }
+
+               Pipe_Freeze();
+
+               /* Save previous joystick value for next joystick change detection */
+               PrevJoystickStatus = JoystickStatus;
        }
 }
        }
 }
+
USB isp AVR programmer